The hand that flew up to slash Walter's knife arm had indeed made contact, and left flesh hanging off of his hand. Walter's demeanor quickly soured, but he said nothing, and when she was trying to get an advantage of him; Walter quickly shadow stepped in front of her.
"That hurt, bitch!" He growled coldly. With the knife in his hand he quickly aimed the hilt towards her head, raised his arm, and quickly brought it down towards her head. By this time too the wound she'd given him had completely healed.